Games like PC FISH: Taskbar Aquarium
Games like PC FISH: Taskbar Aquarium include Spirit City: Lofi Sessions, Tiny Pasture, Cornerpond, Rusty's Retirement, and Stardew Valley. We matched them by the tags players give PC FISH: Taskbar Aquarium on Steam (Simulation, Idler, Trading, Creature Collector, and Desktop Companion): closest matches first, and among equally close ones the better-known games.

Spirit City: Lofi Sessions
Shared: Desktop Companion · Idler · Creature Collector

Tiny Pasture
Shared: Idler · Creature Collector · Cute

Cornerpond
Shared: Idler · Simulation · Desktop Companion

Rusty's Retirement
Shared: Idler · Simulation · Desktop Companion

Stardew Valley
Shared: Simulation · Life Sim · Pixel Graphics

Maltese's Fluffy Onsen
Shared: Simulation · Desktop Companion · Idler

The Sims™ 4
Shared: Simulation · Life Sim · Free to Play

My Little Life
Shared: Idler · Simulation · Desktop Companion

Fish to Dish: Idle Sushi
Shared: Idler · Desktop Companion · Creature Collector

Cast n Chill
Shared: Idler · Creature Collector · Relaxing

TCG Card Shop Simulator
Shared: Simulation · Collectathon · Trading

Chillquarium
Shared: Idler · Creature Collector · Collectathon

Birdwatching Notebook
Shared: Idler · Creature Collector · Desktop Companion

Tiny Bookshop
Shared: Simulation · Life Sim · Relaxing

Placid Plastic Duck Simulator
Shared: Collectathon · Relaxing · Simulation

Tiny Aquarium: Social Fishkeeping
Shared: Idler · Creature Collector · Collectathon

Unpacking
Shared: Relaxing · Simulation · Cute

Chonkers
Shared: Idler · Creature Collector · Relaxing

Slime Rancher 2
Shared: Relaxing · Simulation · Cute

Digseum
Shared: Idler · Simulation · Relaxing

Little Witch in the Woods
Shared: Simulation · Life Sim · Cute

Supermarket Simulator
Shared: Simulation · Trading · Life Sim

Screen Cat
Shared: Idler · Simulation · Life Sim

Fields of Mistria
Shared: Simulation · Life Sim · Pixel Graphics